<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>01-指令修饰符</title>
</head>
<body>
    <div id="app">
        <h1>@keyup.enter  →  监听键盘回车事件</h1>
        <input type="text" v-model="username" @keyup.enter="fn">
    </div>

    <script src="https://cdn.jsdelivr.net/npm/vue@2.7.16/dist/vue.js"></script>

    <script>
        const app = new Vue({
            el:'#app',
            data:{
                username:''
            },
            methods:{
                fn(e) {
                    // if(e.key === "Enter") {
                    //     console.log('键盘回车的时候触发',this.username)
                    // }
                    // console.log(e);
                    
                    console.log('键盘回车的时候触发',this.username)
                }
            }
        })
    </script>
</body>
</html>